std::layout_left::mapping<Extents>:: extents

From cppreference.com
constexpr const extents_type & extents ( ) const noexcept ;
(since C++23)

Returns a const reference to the extents object. Equivalent to return extents_ ; .

Parameters

(none)

Return value

A const reference to the extents.

Example

See also

obtains the extents object
(public member function of std::mdspan<T,Extents,LayoutPolicy,AccessorPolicy> )